CN103441594B - A kind of rotor - Google Patents
A kind of rotor Download PDFInfo
- Publication number
- CN103441594B CN103441594B CN201310391628.4A CN201310391628A CN103441594B CN 103441594 B CN103441594 B CN 103441594B CN 201310391628 A CN201310391628 A CN 201310391628A CN 103441594 B CN103441594 B CN 103441594B
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- Prior art keywords
- mandrel
- rotor
- eddy current
- sleeve pipe
- passage
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- 239000007788 liquid Substances 0.000 claims abstract description 9
- 230000017525 heat dissipation Effects 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 description 6
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A kind of rotor, it comprises mandrel, the eddy current cover being positioned at mandrel local peripheral and the permanent magnet be installed on mandrel, described mandrel inside is provided with passage, gas-liquid core is provided with in described passage, described passage communicates with described eddy current cover, described permanent magnet is respectively equipped with a magnetism-isolating loop along the end of mandrel length bearing of trend, the outer race of described permanent magnet and magnetism-isolating loop is provided with a pretective sleeve pipe, described eddy current overlap in the outside of described pretective sleeve pipe and and leave gap between described pretective sleeve pipe, described eddy current cover, the passage of pretective sleeve pipe and mandrel forms a closed cavity, described rotor also includes the heat dissipation element shed by heat being arranged at described mandrel end.Rotor of the present invention can effectively reduce rotor (permanent magnet) temperature, reduces motor power consumption and then improves electric efficiency.
Description
Technical field
The present invention relates to a kind of rotor, particularly relate to a kind of Large-power High-Speed rotor.
Background technology
Existing high speed rotor structure is primarily of structure compositions such as pretective sleeve pipe, permanent magnet and mandrels.Wherein pretective sleeve pipe material selects the following two kinds usually: a kind of is metallic sheath cylinder, another kind is fiber sleeve, wherein in metallic sheath cylinder, metallic sheath and permanent magnet material are electric conducting material, armature reaction harmonics magnetic fields when running for motor, produce main eddy current at rotor jacket cylinder superficial layer, temperature of rotor is raised.And fiber sleeve produces without eddy current, but permanent magnet, mandrel can produce a certain amount of eddy current, and temperature also can raise, and be difficult to heat to derive, temperature of rotor is raised by fiber sleeve.
For above-mentioned reasons and existing rotor dispersing heat condition limited, temperature of rotor can progressively raise, and when rotor increases to over certain numerical value at hot operation or temperature, permanent magnet irreversible demagnetization will be caused to decay, motor performance progressively declines, and then loses the power savings advantages of permanent magnetic asyn high-speed electric machine.
Therefore, necessary the deficiency solving prior art is improved to prior art.
Summary of the invention
The invention provides a kind of rotor, it effectively can solve the heating problem of permanent magnetic asyn high-speed electric machine rotor.
The present invention adopts following technical scheme: a kind of rotor, it comprises mandrel, the eddy current cover being positioned at mandrel local peripheral and the permanent magnet be installed on mandrel, described mandrel inside is provided with passage, gas-liquid core is provided with in described passage, described passage communicates with described eddy current cover, described permanent magnet is respectively equipped with a magnetism-isolating loop along the end of mandrel length bearing of trend, the outer race of described permanent magnet and magnetism-isolating loop is provided with a pretective sleeve pipe, described eddy current overlap in the outside of described pretective sleeve pipe and and leave gap between described pretective sleeve pipe, described eddy current cover, the passage of pretective sleeve pipe and mandrel forms a closed cavity, described rotor also includes the heat dissipation element shed by heat being arranged at described mandrel end.
The length bearing of trend of described passage is consistent with the length bearing of trend of described mandrel.
Described rotor also includes the working end being arranged at described another end of mandrel.
The present invention has following beneficial effect: in the present invention when temperature of rotor is elevated to uniform temperature, in the chamber that rotor is airtight, filling working medium starts gasification, rapidly temperature is conducted to low temperature position (axle two ends) from high temperature position, meet cold rear working medium by gaseous state liquefy, liquid along eddy current cover, pretective sleeve pipe and mandrel internal face flow to heating high temperature position, working medium is the process to the cooling of rotor thermal source along the process that wall returns, rotor of the present invention can effectively reduce rotor (permanent magnet) temperature, reduces motor power consumption and then improves electric efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of first embodiment of the invention rotor.
Fig. 2 is the structural representation of second embodiment of the invention rotor.
Embodiment
Please refer to shown in Fig. 1, first embodiment of the invention rotor comprises mandrel 1, is positioned at the eddy current of mandrel 1 local peripheral cover 2, and mandrel 1 is provided with passage 3, this passage 3 and eddy current overlap 2 and communicate.Also be provided with gas-liquid core 4 in the passage 3 of mandrel 1, this gas-liquid core 4 controls the effect of gas one way flow and pretective sleeve pipe outer wall, the flow ratio of eddy current cover, mandrel inwall liquid.Wherein the length bearing of trend of passage 3 is consistent with the length bearing of trend of described mandrel 1.Rotor of the present invention also includes the permanent magnet 5 be installed on described mandrel 1, and this permanent magnet 5 is respectively equipped with a magnetism-isolating loop 6 along two ends of mandrel 1 length bearing of trend, is provided with a pretective sleeve pipe 7 in the outer race of permanent magnet 5 and magnetism-isolating loop 6.Leave space between pretective sleeve pipe 7 and eddy current cover 2, wherein the passage 3 of eddy current cover 2, pretective sleeve pipe 7 and mandrel 1 forms a closed cavity.Rotor of the present invention also includes the heat dissipation element 8 shed by heat being arranged at mandrel 1 end.
The course of work of first embodiment of the invention rotor is as follows: during machine operation, rotor high-speed rotates, overlap in 2 pretective sleeve pipes 7 at eddy current under magnetic fields and produce eddy current (main heat), eddy current cover 2 is outer to be produced wind and to rub heat, so make rotor eddy current overlap 2 and pretective sleeve pipe 7 temperature raise.Pretective sleeve pipe 7 heat is delivered to mandrel 1 by permanent magnet 5.Temperature of rotor rising makes filling at eddy current cover 2, working medium in the closed cavity of passage 3 formation of pretective sleeve pipe 7 and mandrel 1 starts gasification, rapidly temperature is conducted to low temperature position (axle two ends) from high temperature position, meet cold rear working medium by gaseous state liquefy, liquid along eddy current cover, pretective sleeve pipe and mandrel internal face flow to heating high temperature position, working medium is the process to the cooling of rotor thermal source along the process that wall returns, working medium is at the eddy current cover 2 of rotor, gasification-liquefaction is carried out in the closed cavity of passage 3 formation of pretective sleeve pipe 7 and mandrel 1, heat transfer finally reaches the object reducing rotor (permanent magnet) temperature.The heat of first embodiment of the invention rotor can be shed by heat dissipation element 8.
Please refer to Fig. 1 and shown in composition graphs 2, as a further improvement on the present invention, second embodiment of the invention rotor also includes the working end 9 being arranged at another end of mandrel 1.
The course of work of second embodiment of the invention rotor is as follows: during machine operation, rotor high-speed rotates, overlap in 2 pretective sleeve pipes 7 at eddy current under magnetic fields and produce eddy current (main heat), eddy current cover 2 is outer to be produced wind and to rub heat, so make rotor eddy current overlap 2 and pretective sleeve pipe 7 temperature raise.Pretective sleeve pipe 7 heat is delivered to mandrel 1 by permanent magnet 5.Temperature of rotor rising makes filling at eddy current cover 2, working medium in the closed cavity of passage 3 formation of pretective sleeve pipe 7 and mandrel 1 starts gasification, rapidly temperature is conducted to low temperature position (axle two ends) from high temperature position, meet cold rear working medium by gaseous state liquefy, liquid along eddy current cover, pretective sleeve pipe and mandrel internal face flow to heating high temperature position, working medium is the process to the cooling of rotor thermal source along the process that wall returns, working medium is at the eddy current cover 2 of rotor, gasification-liquefaction is carried out in the closed cavity of passage 3 formation of pretective sleeve pipe 7 and mandrel 1, heat transfer finally reaches the object reducing rotor (permanent magnet) temperature.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, can also make some improvement under the premise without departing from the principles of the invention, and these improvement also should be considered as protection scope of the present invention.
Claims (3)
1. a rotor, it comprises mandrel (1), the eddy current cover (2) being positioned at mandrel (1) local peripheral and the permanent magnet be installed on mandrel (1), it is characterized in that: described mandrel (1) inside is provided with passage (3), gas-liquid core (4) is provided with in described passage (3), described passage (3) communicates with described eddy current cover (2), described permanent magnet (5) is respectively equipped with a magnetism-isolating loop (6) along the end of mandrel (1) length bearing of trend, the outer race of described permanent magnet (5) and magnetism-isolating loop (6) is provided with a pretective sleeve pipe (7), described eddy current cover (2) be positioned at described pretective sleeve pipe (7) outside and and leave gap between described pretective sleeve pipe (7), described eddy current cover (2), the passage (3) of pretective sleeve pipe (7) and mandrel (1) forms a closed cavity, described rotor also includes the heat dissipation element (8) shed by heat being arranged at described mandrel (1) end.
2. a kind of rotor as claimed in claim 1, is characterized in that: the length bearing of trend of described passage (3) is consistent with the length bearing of trend of described mandrel (1).
3. a kind of rotor as claimed in claim 2, is characterized in that: described rotor also includes the working end (9) being arranged at described mandrel (1) another end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310391628.4A CN103441594B (en) | 2013-09-02 | 2013-09-02 | A kind of rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310391628.4A CN103441594B (en) | 2013-09-02 | 2013-09-02 | A kind of rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103441594A CN103441594A (en) | 2013-12-11 |
| CN103441594B true CN103441594B (en) | 2015-12-02 |
Family
ID=49695276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310391628.4A Active CN103441594B (en) | 2013-09-02 | 2013-09-02 | A kind of rotor |
Country Status (1)
| Country | Link |
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| CN (1) | CN103441594B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757735A (en) * | 2018-08-30 | 2018-11-06 | 南京磁谷科技有限公司 | A kind of compound axle sleeve structure of magnetic suspension motor rotor |
| CN113472112B (en) * | 2021-08-05 | 2023-01-06 | 威海西立电子股份有限公司 | Rotor cooling method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604876A (en) * | 2009-06-23 | 2009-12-16 | 哈尔滨理工大学 | Fan-cooled rotor in shaft of high-speed permanent magnet motor |
| CN201774392U (en) * | 2010-06-02 | 2011-03-23 | 珠海银通新能源有限公司 | Hollow heat dissipation shaft motor |
| CN202918134U (en) * | 2012-11-28 | 2013-05-01 | 沈阳工业大学 | Compressor/ high speed permanent magnet motor system |
| CN203481950U (en) * | 2013-09-02 | 2014-03-12 | 南京磁谷科技有限公司 | Motor rotor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004159402A (en) * | 2002-11-05 | 2004-06-03 | Toshiba Corp | Electric motor and electric motor generator |
| CN2759049Y (en) * | 2004-12-21 | 2006-02-15 | 温州市工科所磁传动设备厂 | High-speed magnetic drier |
| DE102009051114A1 (en) * | 2009-10-28 | 2011-05-05 | Siemens Aktiengesellschaft | Electric machine |
-
2013
- 2013-09-02 CN CN201310391628.4A patent/CN103441594B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604876A (en) * | 2009-06-23 | 2009-12-16 | 哈尔滨理工大学 | Fan-cooled rotor in shaft of high-speed permanent magnet motor |
| CN201774392U (en) * | 2010-06-02 | 2011-03-23 | 珠海银通新能源有限公司 | Hollow heat dissipation shaft motor |
| CN202918134U (en) * | 2012-11-28 | 2013-05-01 | 沈阳工业大学 | Compressor/ high speed permanent magnet motor system |
| CN203481950U (en) * | 2013-09-02 | 2014-03-12 | 南京磁谷科技有限公司 | Motor rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103441594A (en) | 2013-12-11 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Motor rotor mounting and positioning structure Effective date of registration: 20160912 Granted publication date: 20151202 Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch Pledgor: Nanjing CIGU Limited Corporation Registration number: 2016320000014 |
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Date of cancellation: 20170926 Granted publication date: 20151202 Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch Pledgor: Nanjing CIGU Limited Corporation Registration number: 2016320000014 |
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Denomination of invention: Motor rotor mounting and positioning structure Effective date of registration: 20171019 Granted publication date: 20151202 Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch Pledgor: Nanjing CIGU Limited Corporation Registration number: 2017320000042 |
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Date of cancellation: 20180302 Granted publication date: 20151202 Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch Pledgor: Nanjing CIGU Limited Corporation Registration number: 2017320000042 |
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Denomination of invention: Motor rotor mounting and positioning structure Effective date of registration: 20180322 Granted publication date: 20151202 Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch Pledgor: Nanjing CIGU Limited Corporation Registration number: 2018320000031 |
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Date of cancellation: 20190424 Granted publication date: 20151202 Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch Pledgor: Nanjing CIGU Limited Corporation Registration number: 2018320000031 |
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Denomination of invention: Motor rotor mounting and positioning structure Effective date of registration: 20190521 Granted publication date: 20151202 Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch Pledgor: Nanjing CIGU Limited Corporation Registration number: 2019320000238 |
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Address after: 211102 No.99, Jinxin Middle Road, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Cigu Technology Co., Ltd Address before: Nine No. 211102 Bamboo Road, Jiangning Development Zone, Nanjing, Jiangsu, 100 Patentee before: NANJING CIGU LIMITED Corp. |
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Date of cancellation: 20200615 Granted publication date: 20151202 Pledgee: Bank of Beijing Limited by Share Ltd. Nanjing branch Pledgor: NANJING CIGU Ltd.,Corp. Registration number: 2019320000238 |
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